Where should the inspection sticker be placed on the vehicle?

The inspection sticker should be placed in the lower left corner on the interior of the windshield. This placement is specified by Pennsylvania state law, which ensures that the sticker is visible to law enforcement and inspection personnel without obstructing the driver's view. Positioning the sticker in this location helps to maintain a clear line of sight for the driver, thereby promoting safety on the road.

While other locations might seem plausible for visibility, they do not adhere to the regulations set forth in Pennsylvania. For example, placing the sticker in the upper right corner of the windshield could obstruct the view for the driver and may not be immediately visible to officials conducting vehicle inspections. Similarly, putting the sticker on the rear bumper or on the passenger door frame does not comply with the inspection guidelines, as these areas may not provide the necessary visibility and accessibility for verification purposes.